A Sudanese group that has spearheaded anti-government demonstrations since last month called Friday for nationwide protests next week to pile pressure on the government of President Omar al-Bashir. The demonstrations that erupted on December 19 over a government decision to triple the price of bread have swiftly escalated into broader protests that are widely seen as the biggest threat to Bashir’s rule in three decades in power. “We will launch a week of uprising with demonstrations ...